My doctor prescribed me oxycodone 15 mg 4x a day. When i go back to him 30 days later and he piss tests me, what should i test positive for if thats the ONLY medication ive taken? The reason i ask is because on my last visit to him, he accused me of taking other opiods/opiates (morphine) and according to him i should NOT have tested positive for ANY opiates. Now is he crazy or am i? He prescribes me oxycodone and then says i should NOT test positive for opiates? I dont get it! Will taking more than 60mg of oxycodone per day affect the urine tests results on my next visit?